PLATE XIV. 



YORKSHIRE SHELLS. 



Fig. 



Ammonites Braikenridgii, p. Ill, reduced one half. 



Ammonites macrocephalus, p. 109, reduced one half. 

 3. Ammonites Blagdeni, p. 110, side view. 

 Sfi- front view, reduced one half. 



4. Belemnites giganteus, p. 108. 

 4fl- transverse section. 



5a. Serpula plicatilis, p. 121. 

 5#- magnified view. 



5c. transverse section. 



6. Serpula sulcata, p. 121. 



7. Serpula intestinalis, p. 121. 

 80, 0. Vermicularia nodus, p. 120. 



